The sheriff's department in Pima County, Arizona, said DNA collected so far has not turned up any matches in a national criminal justice database.

It's been two weeks since the 84 year old's disappearance and authorities say there have not been any arrests

Law enforcement said they're considering using genetic genealogy to test the DNA found at the Arizona home of Nancy Guthrie.

The sheriff's department in Pima County, Arizona, said DNA collected so far has not turned up any matches in a national criminal justice database.